http://acm.hdu.edu.cn/showproblem.php?pid=1020大水题一个疑惑释

http://acm.hdu.edu.cn/showproblem.php?pid=1020大水题一个不解释

#include<string>
#include<cstdio>
#include<map>
#include<algorithm>
#include<string.h>
#include<cmath>
#include<iostream>
using namespace std;
int main()
{
 int t;
 scanf("%d",&amp;t);
 string str;
  while(t--)
  {
	  map<char>M;
       cin&gt;&gt;str;

	for(int i=0;i<str.size char p="str[i];" int kk="0;" while str.size i-- if printf return><br> <div class="clear">
                 
              
              
        
            </div></str.size></char></iostream></cmath></string.h></algorithm></map></cstdio></string>